反应详情

According to the General Procedure E, 2,2-Dibromo-1-(3,4-dimethoxyphenyl)ethene (4.00 g, 12.40 mmol) and n-BuLi (17.11 ml, 27.28 mmol) are converted to give after workup and chromatography (SiO2, PE/EE=1:1, Rf=0.51) the title compound (1.70 g, 10.48 mmol, 85%) as a colorless solid, m.p. 71-72° C.;